Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
35591 (1998 HB91)
Classification: Main-belt Asteroid          SPK-ID: 2035591
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1077483213255969 4.129e-08  
a 2.807658663895729 1.8529e-08 au
q 2.505138156005696 1.1365e-07 au
i 4.77542091049244 4.5974e-06 deg
node 145.8639864493834 5.4892e-05 deg
peri 101.5486478968418 5.892e-05 deg
M 225.8694616991285 2.2787e-05 deg
tp 2459640.735948711366
(2022-Mar-02.23594871)
0.00011059 TDB
period 1718.362905687334
4.70
1.7011e-05
4.657e-08
d
yr
n .2095017291216505 2.0739e-09 deg/d
Q 3.110179171785762 2.0526e-08 au
  Orbit Determination Parameters
   # obs. used (total)      855  
   data-arc span      9783 days (26.78 yr)  
   first obs. used      1993-04-16  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55855  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 03:52:55  

Additional Information
 Earth MOID = 1.49695 au 
 Jupiter MOID = 1.92318 au 
 T_jup = 3.309 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456857.5 (2014-Jul-19.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1095777461458993 4.1058e-08  
q 2.498090592027536 1.1312e-07 au
tp 2456207.207373150137
(2012-Oct-06.70737315)
0.00010371 TDB
node 145.9104272515142 5.485e-05 deg
peri 101.8500602061764 5.879e-05 deg
i 4.777527496609766 4.6016e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      855  
   data-arc span      9783 days (26.78 yr)  
   first obs. used      1993-04-16  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55855  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 03:52:55  

Additional Information
 Jupiter MOID = 1.92318 au 
 T_jup = 3.309 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.685736635780083E-15 -4.597351147286026E-15 -2.918203110440294E-13 4.318066526585624E-15 -4.241640726052996E-14 -1.802686570183949E-16
q -4.597351147286026E-15 1.279577110054366E-14 8.141656574115709E-13 -1.035599251768432E-14 1.363208621102573E-13 7.451476182999823E-16
tp -2.918203110440294E-13 8.141656574115709E-13 1.075570795141935E-8 3.429329703782565E-12 2.217275569872615E-9 1.06599017058969E-12
node 4.318066526585624E-15 -1.035599251768432E-14 3.429329703782565E-12 3.008488769841525E-9 -2.996818227056057E-9 3.581814269533788E-12
peri -4.241640726052996E-14 1.363208621102573E-13 2.217275569872615E-9 -2.996818227056057E-9 3.456230522911546E-9 -3.342506221232551E-12
i -1.802686570183949E-16 7.451476182999823E-16 1.06599017058969E-12 3.581814269533788E-12 -3.342506221232551E-12 2.117440880741236E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1   n/a MPO502416  
diameter diameter 6.376 km 0.297 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.040   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

35591 (1998 HB91)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HB91 = 1995 WG33 = 2000 WA46 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Aug-03 15:55 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin